Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 2 |
| isoclinism | isoclinic class of #53390 |
| automorphism | Aut(G) = C215 (order 32768) · Inn(G) = C25 · Out(G) = C210 |
| homology | Abelianization (H1) = C25 · Schur multiplier (H2) = C27 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, commutator, Frattini, socle, prime radical, cosocle | C23 | C25 |
| LCS | G ▷ C23 ▷ C1 | |
| UCS | C1 ◁ C23 ◁ G | |
| LECS | G ▷ C23 ▷ C1 | |
657 conjugacy classes of subgroups.
| minimal degree | μ(G) = 40 |
| transitive degree | μt(G) = 256 |
A minimal faithful permutation representation — 5 generators on 40 points:
(9,10,13,16)(11,17,18,14)(12,15,20,22)(19,23,24,21)(25,26,30,31)(27,29,35,32)(28,36,37,33)(34,40,38,39);(1,2,5,7)(3,4,8,6)(11,18)(14,17)(19,24)(21,23)(26,31)(28,37)(29,32)(34,38);(1,3,5,8)(2,6,7,4)(9,11,13,18)(10,14,16,17)(12,19,20,24)(15,21,22,23)(25,27)(26,32)(28,38)(29,31)(30,35)(33,39)(34,37)(36,40);(1,3)(2,4)(5,8)(6,7)(9,10)(11,14)(12,15)(13,16)(17,18)(19,21)(20,22)(23,24)(25,28,30,37)(26,33,31,36)(27,34,35,38)(29,39,32,40);(1,4)(2,3)(5,6)(7,8)(9,12,13,20)(10,15,16,22)(11,19,18,24)(14,21,17,23)(25,29,30,32)(26,27,31,35)(28,39,37,40)(33,34,36,38)Polycyclic presentation:
2^8|a^2=g,b^2=fgh,c^2=h,d^2=f,e^2=g,b^a=bf,c^a=cg,d^a=dg,e^a=ef,c^b=ch,d^b=df,e^b=egh,d^c=dgh46 conjugacy classes — view the full character table.
| maximal subgroup of | C2×#57381, #8100997, #8101195, … |
| maximal normal subgroup of | C2×#57381, #8100997, #8101195, … |
| maximal quotient of | #585988, #586558, #587012, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 50369);